DOI: 10.1002/2015GL065944
论文题名: Multifluid MHD study of the solar wind interaction with Mars' upper atmosphere during the 2015 March 8th ICME event
作者: Dong C. ; Ma Y. ; Bougher S.W. ; Toth G. ; Nagy A.F. ; Halekas J.S. ; Dong Y. ; Curry S.M. ; Luhmann J.G. ; Brain D. ; Connerney J.E.P. ; Espley J. ; Mahaffy P. ; Benna M. ; McFadden J.P. ; Mitchell D.L. ; DiBraccio G.A. ; Lillis R.J. ; Jakosky B.M. ; Grebowsky J.M.
刊名: Geophysical Research Letters
ISSN: 0094-8507
EISSN: 1944-8238
出版年: 2015
卷: 42, 期: 21 起始页码: 9103
结束页码: 9112
语种: 英语
英文关键词: data-model comparison
; interplanetary coronal mass ejection
; ion escape plume and rate
; MAVEN measurements
; multifluid MHD
; plasma boundaries
Scopus关键词: Ionosphere
; Ions
; Solar wind
; Upper atmosphere
; Interplanetary coronal mass ejections
; Magnetic pileup boundary
; Martian ionosphere
; Model comparison
; Multi-fluids
; Plasma boundary
; Solar wind interactions
; Volatile evolution
; Magnetohydrodynamics
; atmospheric modeling
; atmospheric plume
; comparative study
; coronal mass ejection
; ion exchange
; Mars
; Martian atmosphere
; plasma
; solar wind
; spacecraft
; spatiotemporal analysis
; upper atmosphere
; wake
英文摘要: We study the solar wind interaction with the Martian upper atmosphere during the 8 March 2015 interplanetary coronal mass ejection (ICME) by using a global multifluid MHD model. Comparison of the simulation results with observations from Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft shows good agreement. The total ion escape rate is increased by an order of magnitude, from 2.05 × 1024 s-1 (pre-ICME phase) to 2.25 × 1025 s-1 (ICME sheath phase), during this time period. Two major ion escape channels are illustrated: accelerated pickup ion loss through the dayside plume and ionospheric ion loss through the nightside plasma wake region. Interestingly, the tailward ion loss is significantly increased at the ejecta phase. Both bow shock and magnetic pileup boundary (BS and MPB) locations are decreased from (1.2RM, 1.57RM) at the pre-ICME phase to (1.16RM, 1.47RM), respectively, during the sheath phase along the dayside Mars-Sun line. Furthermore, both simulation and observational results indicate that there is no significant variation in the Martian ionosphere (at altitudes 200 km, i.e., the photochemical region) during this event. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84954558584&doi=10.1002%2f2015GL065944&partnerID=40&md5=5279c5cd48067ff0d0cae8acae1d2da6
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8123
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Dong C.,Ma Y.,Bougher S.W.,et al. Multifluid MHD study of the solar wind interaction with Mars' upper atmosphere during the 2015 March 8th ICME event[J]. Geophysical Research Letters,2015-01-01,42(21).